<html>
    <head>
	<title>
	    show cards
	</title>
    </head>
    <body>
	<table>
	    {% for row in data %}
	    <tr>
		{% for unit in row %}
		<td>
		    <img src="{{ unit }}">
		</td>
		{% endfor %}
	    </tr>
	    {% endfor %}
	</table>
    </body>
</html>
